import Vue from 'vue'
import Router from 'vue-router'
import Login from './components/Login.vue'
import Home from './components/Home.vue'
import Welcome from './components/Welcome.vue'
import Users from './components/user/Users.vue'
import Rights from './components/power/Rights.vue'
import Roles from './components/power/Roles.vue'
import Cate from './components/goods/Cate.vue'
import Params from './components/goods/Params.vue'


Vue.use(Router)

const router = new Router({
    routes: [{
        path: '/',
        redirect: '/login'
    }, {
        path: '/login',
        component: Login
    }, {
        path: '/home',
        component: Home,
        redirect: '/welcome',
        children: [{
                path: '/welcome',
                component: Welcome
            },
            {
                path: '/users',
                component: Users
            },
            {
                path: '/rights',
                component: Rights
            },
            {
                path: '/roles',
                component: Roles
            },
            {
                path: '/categories',
                component: Cate
            },
            {
                path: '/params',
                component: Params
            }
        ]
    }]
})

export default router

// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
    // to   将要访问的路径
    // from 代表从哪个路径跳转而来
    // next 是一个函数，表示放行    next() 放行 next('/login) 表示强制跳转到页面
    if (to.path == '/login') return next()
        // 获取token
    const tokenStr = window.sessionStorage.getItem('token')
    if (!tokenStr) return next('/login')
    next()
})

// 解决用户列表点击错误
const originalPush = Router.prototype.push
Router.prototype.push = function push(location) {
    return originalPush.call(this, location).catch(err => err)
}